The beneficial effect will be bigger than average for those adolescents who receive BA before CR, and smaller than average for those adolescents who receive CR before BA. The primary objective is to establish the differential and sequential…
ID
Bron
Verkorte titel
Aandoening
Depressive disorder
Ondersteuning
Onderzoeksproduct en/of interventie
Uitkomstmaten
Primaire uitkomstmaten
The primary study parameters are the change in depressive symptomatology.
Achtergrond van het onderzoek
SUMMARY
Rationale: Depression is one of the most prevalent mental disorders in adolescence, and a
major health concern. Thus far, Cognitive Behavioural Therapy (CBT) programs are most
applied and found most effective. However, little is known about the differential and sequential
effects of the different CBT components. Objective: Based on previous research, the
proposed study will investigate the differential and sequential effects of the two most effective
components of CBT, Cognitive Restructuring (CR) and Behavioural Activation (BA). More
specifically, we will investigate to what extent each module reduced depressive symptoms,
and which order of modules leads to a larger symptom reduction. We will further investigate
how adolescents and their therapists evaluate this sequential treatment. Study design: We
will use a Single Case Experimental Design (SCED) with two conditions/groups. Study
population: Participants (N=12) will be adolescents aged 12-18, diagnosed with a clinical
depression using the Kiddie Schedule for Affective Disorders and Schizophrenia, present and
lifetime version. Intervention: All participants take part in the following 12-week trajectory: first
diagnostic measurement (T0, clinical interview and online questionnaires); 3-week baseline
period (daily monitoring); second diagnostic measurement (T1: online questionnaires), first 3-
week intervention phase (BA or CR and daily monitoring), third diagnostic measurement (T2:
online questionnaires); second 3-week intervention phase (CR or BA and daily monitoring);
fourth diagnostic measurement (T3: online questionnaires); 3-week post-treatment phase
(daily monitoring); fifth and last diagnostic measurement (clinical interview and online
questionnaires). Half of the participants (N=6) will be randomly assigned to the BA first, CR
second condition, and the other participants (N=6) to a CR first, BA second condition. Main
study parameters/endpoints: The primary study parameters are the change in depressive
symptomatology as measured with the CDI-2 at the diagnostic measurements, and changes
in core depression symptomatology, cognitions, behaviour and emotions as measured with the
daily questionnaire. Changes in these parameters across the different phases will be
investigated using SCED-specific analyses, comparing phases within individuals and
individuals between conditions. As such we aim to provide insights into the differential and
sequential effects of the CR and BA CBT-elements.
Doel van het onderzoek
The beneficial effect will be bigger than average for those adolescents who receive BA before CR, and smaller than average for those
adolescents who receive CR before BA.
The primary objective is to establish the differential and sequential effectiveness of cognitive restructuring (CR) and behavioral activation (BA) (and the optimal sequence of these elements) on depressive symptoms (PHQ-2 at post treatment) in referred adolescents diagnosed with a depressive disorder.
The secondary objective is to investigate the feasibility and effectiveness of the CBT elements as judged by the clinicians and adolescents.
Onderzoeksopzet
Assesments and CBT-elements for each condition per session.
Week 1 2 3 4 5 6 7 8 9 10 11 12
Condition A baseline CR CR CR BA BA BA Follow Up
Condition B baseline BA BA BA CR CR CR Follow Up
Daily ass. X. X X X X X X X X X X X
Diagnostics T0 T1 T2 T3 T4
Note: CR = cognitive restructuring; BA = behavioral activation
Onderzoeksproduct en/of interventie
The two most effective components of CBT, Behavioural Activation (BA) and Cognitive Restructuring (CR) will be researched. Each component consists of three weekly sessions of 45 minutes.
The BA module aims to educate adolescents on the relationship between activity and
behavior, and how to influence their emotional wellbeing through behavioral activation.
The CR module aims to train adolescents to: identify their own cognitions; understand
the relation between events and their cognitions, feelings, and behaviors; challenge unhealthy
cognitions; create new, healthier cognitions. Each of the three sessions, adolescents take a
step further in this learning process,
Publiek
Wetenschappelijk
Belangrijkste voorwaarden om deel te mogen nemen (Inclusiecriteria)
In order to be eligible to participate in this study, a subject must meet all of the
following criteria:
• age between 12-18 years old;
• sufficient knowledge of the Dutch language;
• diagnosed with a major depressive disorder with the K-SADS
Belangrijkste redenen om niet deel te kunnen nemen (Exclusiecriteria)
A potential subject who meets any of the following criteria will be excluded from
participation in this study:
• absence of adolescents’ or parental permission (for subjects aged younger than 16)
• acute and severe suicidal thoughts and/or intentions
• if the adolescent receives medication for depression and the medication is not yet stable at
the start of the study, or is changed during the course of the study
• when the adolescent does not own a mobile phone to complete the daily questionnaires on
Opzet
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In overige registers
| Register | ID |
|---|---|
| NTR-new | NL8201 |
| CCMO | NL66762.041.18 |
| OMON | NL-OMON49844 |